Roman Herzog is a formidable figure in Germany's government and politics. He has been a professor at two of Germany's most distinguished universities (This carries more weight in Germany than in the US), a church official, presided over the Federal Constitutional Court, and served as President of Germany.
Herrdoktorprofessor Herzog once supported the EU project, but now strongly and openly opposing the EU bureaucracy. He is writing important articles about how the EU undermines national sovereignty of member states, including what he sees as the ending of of the separation of powers.
He is really worried and is sending out stern warnings, as in this article in the mass circulation newspaper Die Welt, where he says that the EU is seriously endangering the system of parliamentarian democracy in Germany. He decries the undesirable development of the EU in general.
Hat tip: Brigitte